Pleat Jet II Horizontal Dust Collectors employ a specially engineered venturi pulse cleaning system. Opti-Pulse cleaning design optimizes energy from pulse pipe to provide a more uniform dust release. Collectors offer all-welded construction with heavy-duty cartridge support. "No Tool" quick release doors make filter changes simple. Pulse system is maintained from grade. Models are available to accommodate 500-50,000 CFM and industry standard cartridges. Sly, Inc. P.O. Box 5939 Cleveland, OH, 44101